Keratoconus is a common corneal disease and it is more prevalent in the area of West India and the Middle East which indicate a possible genetic predisposing for this condition.
If you are considering CAIRS procedure to treat your KC you must:
- Be at least 21 year old
- Although the aim of the surgery is to improve the vision, almost 20% of the patients would not appreciate any improvement.
- You might still need further visual correction with glasses or contact lenses.
- The surgery might not be suitable for severe cases with corneal scarring.
- In severe cases of KC with significant corneal scarring.
- Pregnant women or breast feeding.
- Auto immune connective tissue disease.
The surgery is done under local anaesthesia with topical drops. It is as simple as a Laser Refractive Surgery. In the first part of the surgery, the Femtosecond Laser machine will form the corneal channel, and this part takes around 10-20 seconds, then the surgeon will introduce the human rings (Keranatural) inside the channel, and that part might take 2-3 minutes.
Most of the times, there would be no need for suturing and you might have a foreign body sensation for a few days.
You will be discharged home with eye drops to use for 2 weeks.
Usually, you can go back to your usual life the next day.
You will be followed closely to check for the visual outcome and to see if you need to have some fine tuning to improve the vision.
- In theory, corneal infection could happen, but this is extremely rare.
- Needing further procedure to reposition the graft to get better visual outcome.
- No improvement in vision.
- Needing further surgery to improve vision.
The most important thing is to avoid rubbing the eyes as it might cause the implant to move and it could exacerbate the keratoconus.
You can take a shower 2 days after the surgery, given that you close the eye gently and do not allow water to go inside the eyes. As for swimming, it is not advisable for 1 month after surgery.
Keep in mind that the shape of the cornea might take almost 3 months to stabilise after the surgery, after which we can decide about the final visual outcome.